NXP Semiconductors MPC8260ACVVMHBB

Overview

MPC8260ACVVMHBB from NXP (formerly Freescale) is a PowerQUICC™ II integrated communications processor featuring a dual-issue EC603e core running at 266 MHz, 16 KB instruction and 16 KB data caches, and a dedicated 32-bit RISC communications processor module (CPM) with 32 KB dual-port RAM. It integrates FCCs for 10/100-Mbit Ethernet via MII, SCCs supporting HDLC/UART/SDLC, SMCs for BRI/GCI, SPI/I²C interfaces, eight TDM ports, and supports ATM IMA via TC-layer hardware - deployed in carrier-grade DSLAMs, enterprise routers, and telecom access gateways.

For engineers reviewing the MPC8260ACVVMHBB datasheet, MPC8260ACVVMHBB pinout, MPC8260ACVVMHBB application, or MPC8260ACVVMHBB equivalent, this page delivers verified electrical specs (1.9–2.2 V core, 3.135–3.465 V I/O), thermal resistance (θJA = 83 °C/W on 4-layer board), AC timing (66 MHz local bus, 83 MHz memory controller), CPM clocking architecture, and functional partitioning between G2 core and CPM subsystems - all critical for power-aware embedded networking design.

Technical Context

The MPC8260ACVVMHBB implements a split-architecture design: the 300 MHz-capable G2 core handles general-purpose processing and OS execution, while the autonomous CPM offloads protocol-intensive serial communications using microcode-driven firmware. Core and CPM operate on independent PLLs with configurable multipliers (core: 3:1–6:1; CPM: 2:1–6:1), enabling asynchronous clock domains optimized for throughput and power efficiency.

Its 480-pin TBGA package routes 64-bit 60x bus (up to 266 MHz effective), 32-bit local bus (up to 83 MHz), PCI bridge (MPC8265/8266 only - not present in MPC8260ACVVMHBB), and 128+ I/O signals including PA–PD banks for FCC/SCC/SMC/TDM peripherals. The CPM includes virtual DMA, four SCCs, two SMCs, one SPI, one I²C, three FCCs, two MCCs, and eight TDM interfaces with SI RAM and TC-layer support for ATM cell processing.

Key Specifications

Pinout & Package

480-ball thin quad flat no-lead (TBGA) package, 27 mm × 27 mm body, 1.27 mm ball pitch, RoHS-compliant, lead-free solder profile. Thermal pad on underside requires solder paste stencil opening and ground plane connection per JEDEC JESD51-8.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar integrated communications processor applications.

Compared with MPC8260ACVVMHBB, MPC8272CZQHBB offers higher compute headroom and PCI connectivity at the cost of increased power and layout complexity, while MPC8360EVRAGDB shifts to a modern architecture with security and DDR advantages but abandons CPM-based determinism - making MPC8260ACVVMHBB irreplaceable for legacy telecom protocol continuity.

Availability

MPC8260ACVVMHBB is available at Aetrix Electronics and suitable for carrier-grade DSLAMs, industrial protocol gateways, TDM voice concentrators, and enterprise router control planes requiring stable component supply across extended product lifecycles.

Supply support for MPC8260ACVVMHBB includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

NXP Semiconductors is a global semiconductor leader focused on secure connectivity solutions for automotive, industrial, and networking markets, with deep heritage in Power Architecture® and communications processors.

The MPC8260ACVVMHBB belongs to the PowerQUICC™ II family - designed specifically for embedded networking equipment requiring hardware-accelerated serial communications, deterministic real-time response, and long-term industrial temperature support (–40°C to +105°C).

FAQ

What is the maximum operating frequency of the MPC8260ACVVMHBB core?

The MPC8260ACVVMHBB features an EC603e-based G2 core rated for 266 MHz operation under specified thermal and voltage conditions (VDD = 1.9–2.2 V, TA ≤ 70°C, θJA ≤ 83 °C/W). This frequency is confirmed in Table 5 of the MPC8260AEC Rev. 2.0 datasheet for the 3× core multiplier configuration at 83.33 MHz bus speed. Higher frequencies (e.g., 300 MHz) apply only to superset variants like MPC8266, not the MPC8260ACVVMHBB.

Does the MPC8260ACVVMHBB include an integrated PCI bridge?

No, the MPC8260ACVVMHBB does not include an integrated PCI bridge. According to the MPC8260AEC Rev. 2.0 documentation, the 60x-to-PCI bridge is explicitly limited to MPC8265 and MPC8266 variants only. The MPC8260ACVVMHBB retains the full 60x bus and local bus interfaces but lacks PCI host/peripheral logic, configuration registers, and DMA channels associated with the bridge function.

What CPM peripherals are active on the MPC8260ACVVMHBB?

The MPC8260ACVVMHBB includes three FCCs, four SCCs, two SMCs, one SPI, one I²C, two MCCs, and eight TDM interfaces - all fully functional per the MPC8260AEC Rev. 2.0 specification. Unlike MPC8255 (which omits FCC3 and MCC1), the MPC8260ACVVMHBB implements the full CPM peripheral complement defined for the MPC826xA family baseline, enabling concurrent Ethernet, HDLC, ATM, and TDM operations.

How is thermal management handled for the MPC8260ACVVMHBB in production designs?

The MPC8260ACVVMHBB requires strict thermal design: a 4-layer PCB with dedicated VDD/VDDH/GND planes, ≥4 × 0.1 µF bypass capacitors near each power quadrant, and thermal vias under the exposed pad. Its θJA is 83 °C/W on a 4-layer board (Table 4), meaning at 2.4 W internal power (PINT) and 70°C ambient, junction temperature reaches ~255°C - exceeding the 105°C limit. Therefore, forced airflow or heatsinking is mandatory above 1.5 W sustained dissipation to maintain TJ ≤ 105°C.

Can the MPC8260ACVVMHBB operate in slave mode with an external master processor?

Yes, the MPC8260ACVVMHBB supports slave-mode operation. Section 1.1 of the MPC8260AEC Rev. 2.0 states: "CPU core can be disabled and the device can be used in slave mode to an external core." In this mode, the G2 core is powered down while the CPM remains active, allowing the device to function solely as a communications coprocessor - accessed via the 60x bus by an external master, with CPM firmware executing protocol stacks independently.